Improvement in steam-traps



y lo all to whom it may concern:

MORRILL' C. GOVE, 0F LOWELL, MASSACHUSETTS.

Letters Patent No. 109,004, dated November 8, 1870.

IMPROVEMENT IN STEAM-TRAPS. Y

The 'Schedule referred to in thea; Letters Patent and\making part of thelame.

Be it known that I, Moneum O. Gov, of Lowell, in the county ofMiddlesex`and State of Massachusetts, have invented certain new anduseful Improvements in Stea1n-Traps, of. which the following is afull,

clear, and exact description, referencebeing had to the accompanyingdrawing making apart of' this speciiication, in whichj v l Figure l is acentral longitudinalsection, v Figurc.2, a plan-or top view attr t-hecover B vand aportion ofthe plate J have been-removed.

Figure 3l is a transverse seetionon the dotted line A B of g. 2. Figure4 represents a section of the air-valve and itsseat. I .lhis inventionrelates to steam-traps 'which ale used at the endor terminus ofcontinuous coils or lines-ot' steam-pipes, or where the steam passesfrom the end of the pipe.

'lhis invention also has l'or its object to liberate the Iair within thesteam-pipes that is, to allow t-he air to `veumstanees or conditions.

This tank is closed at the top by a cover, l, secured by screws 'i tothe ilange h.

' Through the bottom ofthe tank, at one end thereof, is an outlet, C,which is covered at times by a sliding-gate or valve, D, connected witha toothed `rack, E, arranged between guides a or in a dovetailed groove.

Stands l riseli'om each side ot' the rack,`and between these stands ispivoted a lever, G, having a segmental gear, I, the'teeth ot' whichengage with the rack to move the Sliding "valve On the opposite endofthe lever is a hollow ball or float, H, which rises when the tankbecomes partially filled with water ii'oln thccondensod steam, and thisrising motion ot the float operates the segment and the rack, andslidcsback the valve and uncovers the outlet C, allowing the water toescape proportionate to the amount ol' steam condensed inthe trap andthe height to which the iloat is raised bythe thus condensing steam.

Above thc1loat,and near the top ofthe tank, is an expansion-rod, K, oneend ol' which screws into the end N ofthe tank. i

"lhe opposite enilof said rod connects` with one end of a transverselever, M, which is pivoted to a stud or bracket, 1*, projecting inwardfrom the end of the tank.

The opposite end of the level' M is connected with p the stem fof anair-valve, S, seated in the usual way.

Beneath the rod and the lever M is a plate, J, which is supportedbetween the sides and ends of the tank.-

lcrlbrations, c, are formed through this plate at one end thereof, andover the float H.

rlhe pertbrations c allow the steam to pass through the plate into thelower part' of the tank, and water Amay also pass through saidpelforations should the steam condense above the plate.

The screw-stem ofthe air-,valve is adjustable in the end of the level'M, and when set for operation the valve is left open.

When steam islet iut-o the pipe. with which the trap is connected, theapproaching steam drives the air forward through the pipe into thesteam-crapaud out at the air-valve, and all the air will be expelledfrom the pipe and from the trap by the time the latter is filled withsteam.

The highly-heated steam expands the rod K, which pushes back -one end ofthe lever M, and draws the other end inward andthe valve S against itsseat, thus leaving the pipe and trap free from air.

After the steam is shut off from the pipe with which the trap isconnected, and after the steam` has escaped from the pipe and from thetrap, the rod K will contract and actuate the lever M to open theair-valve, thus leaving the trap in a condition for again letting steaminto the pipe and expelling the air through the opened air-valve.

I do not claim, `broadly, a iioat actuated by .water rising in a tankfor opening a valve, such a device having been used before in manyforms; `but I claim as my invention- An air-expelling or liberatingsteam-trap, as described, consisting of a tank or holder having aninlet,

R, and an outlet, G, and provided with a toothed rack, E, a segmentalgear, I, a float, H, and a'valve, D, a perforated plate, J, anair-valve, S, a pivoted lever, M, and an cxpansiou-rod, K, all combined,arranged, and operating substantially in the manner and for the .purposeset forth.

MORRILL 0. GQVE.

